Subsurface Information Articles & Analysis
15 articles found
The title for 38-21, Standard Guideline for Investigating and Documenting Existing Utilities increases the scope for Subsurface Utility Engineering (SUE) investigations to include additional conflict information regarding the subsurface. ...
GPR collects important data concerning the presence and layout of buried utilities and other subsurface assets and infrastructure, while reducing costs from damage to utilities and creating more accurate mapping for future reference and future projects. With such benefits, the surveying process has become so vital that many countries have deemed the use of GPR a mandatory ...
The seismic lines that cover the area of interest are of very poor quality, providing a relatively limited amount of information. Two Passive Seismic Tomography (PST) projects were the first attempts to gather information on the block of interest (Phase I: September 2007 and Phase II: March 2011). The results of the first phase added some valuable structural (3D ...
PROJECT: Refraction and ReMi geophysical surveys at a proposed Wind Farm LOCATION: West of Ellensburg, Washington PROJECT DESCRIPTION: Designed and performed seismic refraction / ReMi surveys at 22 proposed Wind Turbine Generator sites for the primary purpose of obtaining shear-wave (Vs) and compressional-wave (Vp) velocities. This information enabled the client (major ...
It is not only unique in the way the data is acquired, but unique in the way the information is processed, plotted, and interpreted. Although similar in many respects to traditional resistivity surveys, the RaMPS methodology has proven to be more accurate and insightful than traditional resistivity for resolving geologic structures and lithology (horizontal and vertical ...
“You have this spot in time and space you’re looking at and trying to gauge the characteristics of the subsurface. That’s a difficult thing to do.” URS needed a way to positively identify the subsurface characteristics. The information pulled needed to be absolute, without having to extrapolate, and it needed to be ...
Passive Seismic Tomography Project Phase II Project Area: approximately 2000km2 Seismic Network: 76 stations Recording Period: 9 months Number of Seismic Events located/used: 276/263 The scope of this project, which followed a successful Phase I Passive Seismic Tomography survey in the same area, was to provide accurate and reliable 3D P-wave velocity and Vp/Vs models, adequate for ...
It is necessary to know other subsurface information to provide remediation of VOCs in the ground water. ...
It may be necessary to know other subsurface information to provide remediation of VOCs in the ground water. ...
It may be necessary to know other subsurface information to remediate radionuclides in ground water, surface water, and leachate. Treatability studies are usually necessary to ensure that the contaminated ground water can be treated effectively at the design flow. A subsurface geologic characterization would be particularly important to ...
It may be necessary to know other subsurface information to remediate fuels in ground water. Treatability testing to characterize contaminant biodegradability and nutrient content may be needed for any biodegradation technology. A subsurface geologic characterization would be particularly important to characterize the migration of NAPLs. ...
It may be necessary to know other subsurface information to remediate halogenated semivolatile organics in water. ...
It may be necessary to know other subsurface information to remediate nonhalogenated semivolatile organics in water. ...
It may be necessary to know other subsurface information to provide remediation of VOCs in the ground water. ...
It may be necessary to know other subsurface information to remediate inorganics in ground water, surface water, and leachate. Treatability studies are usually necessary to ensure that the contaminated ground water can be treated effectively at the design flow. A subsurface geologic characterization would be particularly important to characterize ...